Police are appealing for help to trace the person who provided the tablets and they are warning of the dangers of taking unknown substances.

Northumbria Police’s chief inspector Aidan Sloan said: “We want to identify who is responsible for providing these items so that we can stop anymore of these substances being supplied to young people.

“Taking any unknown substances is incredibly dangerous and in some cases can even be fatal not only that they can make people more vulnerable which could make them more of a target for criminals looking to take advantage.